Internal combustion engine



May 16,v 1933. L. MA WOOLSON 1,909,032

INTERNAL COMBUSTION ENGINE Filed Sept. 25, 1926 2 Sheets-Sheet l LJUNEL ff. NUDLEDAL..

Grammi May 16, 1933. L. M WOOLSON 1,909,032

INTERNAL COMBUSTION ENGINE Filed Sept. 25, 1926 2 Sheets-Sheet 2 @thrill/,1111111111114 L LUNEL M. NUULEUAL.

Patented May 16, 1933 UNITED STATES PATENT oi-*Flclaz COMPANY, OF DETROIT, MICHIGAN,` A CORPORATION OF MICH'IGAN INTERNAL COMBUSTION ENGINE Application led September 25, 1926. Serial No.'137,648.

This inventionirelates to internal combustion engines and more particularly to the structure of the intake and exhaust passages and means associated therewith for heating iuel or mixture. I Y Y An object of the invention is to provide means for supplying exhaust heat to the incoming mixture of an internal combustion engine and to insure the passage of a portion of the exhaust gases to the intake passage.

Another objectof the invention is to pro-v vide a valve housing having intake and exhaust chambers and an intake manifold with a heating chamberfassociated therewith and having a direct communication with the intake chambers,` the manifold'having in its wall a passage providingva `direct connection between theexhanstr chambers and the heating chamber. p j

Another object of the invention is to provide a jacketed intake manifold with pairs of communicating ports adapted to be opened and closed concomitantlywith the operation of the engine. f

Another object of the invention is to provide a jacket intake manifold having a pair of ports between the jacket and the intake passage adapted to be alternately engaged one at a time by reciprocating plungers actuated concomitantly with the actuation of a control element of the engine.

With these and other objects in view which may be incident to my improvements, the invention consists in the parts and combinations to be hereinafter set forth and clai1ned,fwith the understanding that the several vnecessary elements comprising `my invention,l may be varied in construction, proportion and arrangement, without departing from the spirit andfscope of thel appended claims.

In the drawings forming apart .of thisl specification Fig. 1 is a front elevation of a .V-type motor partly in sectionillustrating my invention as applied,

Fig. 2 is a detail View partly in section and partly in side elevation, the part in sec# tion being taken substantially on line 2 2 Fig. 1. The rocking arm foractuating the plungers is shown in two positions one of which is in dotted lines, and n Fig. 3 is a sectional view taken on the line 3 3 Fig. 1, the saine being partly broken away to avoid duplication. i

Referring by numerals tothe drawings, 10 represents a motor crank case having lnounted thereupon cylinders 11. There are six or more of these cylinders arranged in pairs in accordance withthe usual structure of the V-type motor. Mounted upon eachA of the alined rows of cylinders is a valve vhousing 12. The valve housing 12 is formed with a water jacket as indicated at 13 and intake and exhaust chambers 111 and 15. The intake and exhaust chambers communicate with intake and exhaust ports municating with the intake chambers 14.k

These shouldered portions extend from the housings 12 at an incline thereto and perpendicular with respect tothe motor and are provided with openings 23 communicating withthe passages therein. Surrounding the'openings 23 are flanges 24, the faces of which are in a horizontal plane with respect to the motor. p

l The general contour of the shouldered portions 21 is such that thepassages therein are substantially direct communications with the intake chambers. `Theadvanages of such structure are apparent, since it is well established that the passage froinethe mixing chamber of a carburetorvto the intake chamber of a eylindershould be as direct as possible to obtain the best results.

Formed in the wall of the housing 12 and having a direct communication from the face of the flange 24 to the exhaust cham# bers 15, `and slightly inclined from the vertical plane of the motor. It is-there'fore,

IIONEL M. WOO-LSON, OF DETROIT, MICHIGAN, SSIGNOR` TO PACKARD MOTOR CAR f' the shouldered `portions 21 is a passage 25l in a direct line of communication with the top of the exhaust chamber and since the passage 25 is formed in and is a part el the Wall of the intake passage 22 it naturally follows that heat imparted to the Wall olf the passage 25 by the discharge gases is transferred to the intake passage 22 and is absorbed by the incoming gases7 the desir-y ability of which is Well knoivn in the art.

The valve housings l2 are in pairs and are alike in all essential particulars except of course the shouldered portions 21 are on the right hand side ci the left hand housing and on the left hand side olE the right hand housing. It therefore follows that the shouldered portions on the right and lett hand housings are oppositely disposed with respect to each other and that their respective flanges are also oppositely disposed. Since the shoulders on both housings are inclined therefrom at the same angle or Iflegree, the 'flanges 24 Atermed on the respective shoulders are oppositely disposed and in the same horizontal plane.

Mounted upon the flanges 24 trausverselli7 disposed With respect to the motor a manifold comprising a substantially flat portion 2G connecting alike flange portions 27 Which are bolted upon the flanges 24. llormed integral with the oblong portion 26 is a Wall7 semi-circular in cross section and curved at its ends to meet the llanges 24) to provide a passage 28 communicating with the oppositely disposed intake 'les and having a central opening in its bottom or flat portion 26 surrounded by a flange 29 to Which is bolted a carl'iuretor.

The manifold is provided with a acket 50. forming a saddle over the complete manifold except a small portion at each end thereof. The jacket is spaced from the semicircular Wall to provide a unirorm space 31 between the wall of the jacket and the viali of the manifold. Formed in and a part of the semi-circular Wall. at each end of the manifold is a passage 32. The passages 32 communicate with the space 3l torino-:l between the acket and the manifold and have a direct connection with the passages in the shouldered portions leading trom the exhaust chambers, hence, the jacket has a continuous supply of hot gases direct Afrom the exhaust chambers.

Centrally disposed upon the wall of the jacket 3() is a boss which is slotted as indicated at 4. Pivotally mounted in the slot 34 by a pin or bolt is a semi-cireular arm 36 mounted to straddle the jacket 230. The arm 3G is provided with slotted portions 37 in each of which is mounted o, sleeve 38 having` a lange 39 upon one cud adapted to engage the arm on each side oi the slot and threaded upon the other end. A pin 4() is mounted in each of the sleeves 38. "lhe pin 40 has a flanged head 4l internally threaded to engage the threads upon the sleeve and is adapted to bear upon the arm on each side of the slot oppositely disposed to the llange 39 on the sleeve 38.

The pins 40 are mounted to reciprocate in bores 42 drilled through the bosses 43 and the Wall of the jacket 30 on Which the bos` is 43 are found. Flanged sleeves 44 are bolted to the boss 43 to provide suitable lirackets or supports for the pins. These pins are provided upon their free ends with plunger-s 45 adapted to engage bores drilled through the bosses 47 and the iv: ll of the manifold upon which the bosses 47 are formed. The bores` 42 and 4G are in axial alinement, thus by rocking the arm 36 the plungers are caused to reciprocate into and out of the bores 4G to keep the same .tree and clear of any stoppage, caused by the exhaust gases. The bores 46 are the only open communications bet-Ween the jacket and the manifold and these ports are so located as to admit hot exhaust gases to the incoming mixture immediately upon the incoming gases entering the manirold.

n order to rock the arm 3G to im )art a reciprocating movement to the pins 40 and hence the plungerf-i 45, the arm is provided with a prolongation 47 bent at right angles to provide an arm 48. The arm 48 is apertured to receive a rod 49. @ne end ot the rod is provided with an abutment 5U and a tap 5l between which the apertured end of the arm 48 is mounted with coiled springs 52 interposed. The other end of the rod 49 is threaded to receive a socket 53 engaging a ball stud 54 mounted upon a lever 55 for actuating the throttle valve 56 in the mixing chamber 57 of a carburetor 58 bolted to the flange 29 on the manifold. The lever 55 is connected by `a rod and suitable linkage to a control element not shown.

It is to be observed that the valve housings are at an incline to the vertical plane of the motor and that the shouldered por tions extend tangentially to thehousings and at only4 a slight incline from the vertical plane of the motor and that the oppositely disposed shouldered portions provide a support for the manifold in a horizontal plane With respect to the motor. lntake and ein haust chambers are formed in the valve housings, and in the housings and tieir shouldered portions is a passage 25 communicating with the top of the exhaust chambers and extending upwardly therefrom at an incline.

The passage 25 'connects with the passage 32 formed in the` Wall et the manifold and has a direct communication with the jacket or space 31. Thus a portion of the dis charge gases on entering the discharge chamber will pass through the passages 25 and 32 to the jacket and from thence through the bores or ports 4G to the intake manifold. These communications or ports become fouled by carbon deposits Vfrom the exhaust gases. lIt will be observed that the rocker arm is mounted to reciprocate oppositely disposed plungers adaptedk to engage the ports and that the rocker arm being connected by a suitable linkage to one of the control elements of the motor, ythe rocker arm is manipulated concomitantly with the operation of the motor.

While I have shown and described the preferred embodiment of my invention, I wish it to be understoodv that I do not confine myself to the precise details of construction herein set forth, by way of illustration, as it is apparent that 'many changes and variations may be made therein, by those skilled in the art, without departing from the spirit of the invention, or exceeding the scope of the appended claims. y

Having described the various features of my invention, what I claim as new and Adesire to secure by Letters Patent is:

1. In an internal combustion engine, ythe combination with an intake manifold having a heating chamber, the manifold having ports communicating with the heating chamber, plungers co-operating with the ports and means for alternately actuating the plungers to remove carbon deposits from said ports. f

2. In an internal combustion engine, the combination with an intake manifold having a heating chamber, the manifold having oppositely disposed ports, reciprocating plungers mounted to co-operate with the ports and means for alternately reciprocating the plungers.

3. In aninternal combustion engine, the combination with an intake manifoldhaving a heating chamber, the manifold having oppositely disposed ports communicating with the heating chamber, reciprocating plungers mounted to engage theL ports, and a rocking arm for reciprocating the plungers.

4. In an internal combustion engine, the combination with an intake manifold having `a heating chamber, the manifold having oppositely disposed kports forming communications between the manifold and the heating chamber, reciprocating plungers mounted to engage the ports, a pivoted rocking arm connecting the plungers and means for rocking the arm to reciprocate the plungers. f

5. In an internal combustion engine, the

combination with anc-intake manifold havconnected thereWith,-the manifold having y ports communicating with the heating chamber, of reciprocating plungers and meansfor actuating the plungers to enter and fill` the ports to prevent the deposition of carbon therein.

8. In an internal combustion engine, the combination withV the intake manifold, a heating chamber therefor and a carburetor connected therewith, the manifold having ports communicating with the heating l chamber, of plungers to plug the ports consecutively and meansy associated' with the plunger actuating means and a control element of the engine for'concomitant operation. 9. In an internal combustion engine, the combination with Athe intake manifold, a heating ehambertherefor and` a carburetor connected therewith, ther manifold having oppositely disposed ports communicating with the heating chamber, of plungers mounted in the wall of the heating chamber adapted to engagel the ports, a semi-circular rocking arm pivoted upon the heating chamber, means for connecting the arm to the plungers and a linkage between the arm and the throttle of the carburetor.

l0. In an internal combustion engine, the combination with the intake manifold, a heating` chamber therefor` and a carburetor connected therewith, the manifold having oppositely disposed ports communicating with the heating chamber, of plungers mounted to reciprocate in the Wall of the heating chamber and to engage `the ports, a semi-circular rocking arm pivotally mounted to reciprocate the plungers, and a cushioned connection `between the rocking arm and the throttle of the carburetor.

11. In an internal combustion engine, the combination with the intake manifold, ya heating chamber therefor and a carburetor connected with the manifold,.the manifold having oppositely disposed ports communicating with the heating chamber, of plungers mounted to reciprocate in the wall of the heating chamber and to engage the ports consecutively, an arcuate rocking arm pivotally mounted and connected to the plungers and a linkage between the rocking arm and the throttle of the carburetor.

12. In an internal combustion engine, the Combination with 'the intake manifold, a hea-ting chamber therefor and a carburetor connected with the manifold, the manifold having oppositely disposed ports communieating with the heating chamber, of recipii'ocating plungers mounted in the Wall of the heating chambers adapted to plug the ports eonsecutiv ly, an arcuate rocking arm pivot-ally mounted upon the heating chamber, means foi` connecting the rocking arm and the plungers, and means associated with a Conti-ol elementof the engine foil actuating the rocking arm eoncomitantly with the actuation of the conti-ol element.

13. In an internal combustion engine, the combination with an intake manifold having a. heating chamber, the manifold having a plurality of poi-'ts communicating with the heating chamber and means including plungei's coopeiating with the ports to maintain at least one of the ports open.

14. In an internal combustion engine, `the combination with an intake manifold having a heating chamhei` and a paii1 of ports connecting the chamber With the manifold, of plunger means associated with said ports and control mechanism connected to the plungers, actuation of the mechanism moving the plungeis in opposite directions ielaw tive to theii1 associated ports.

In testimony whereof I aiiix my signature.

LION EL M, VVOOLSON. 

